粉末冶金技术2024，Vol.42Issue(2)：153-158,164,7.DOI:10.19591/j.cnki.cn11-1974/tf.2021080008
PTFE/Cu材料动态压缩特性
Dynamic compressive behavior of PTFE/Cu composite materials
摘要
Abstract
Six kinds of polytetrafluoroethylene(PTFE)/Cu materials with the different Cu contents were prepared by cold isostatic pressing and cold press sintering,respectively.The effects of density and preparation method on the dynamic mechanical properties of PTFE/Cu materials were studied by split Hopkinson bar testing(SHPB).The results show that the density of the cold press sintered specimen decreases due to the longitudinal expansion during the cold press sintering process,and a metal film is formed on the specimen surface.The dynamic mechanical properties of the cold press sintered specimen are better than that of the cold isostatic pressed specimen.The PTFE crystals in the cold press sintered PTFE/Cu materials are better developed,and the PTFE encapsulation force on the Cu particles is greater,resulting in the greater interfacial bonding force and improving the mechanical properties of the cold press sintered PTFE/Cu materials.关键词
PTFE/Cu复合材料/冷等静压/冷压烧结/动态压缩性能Key words
PTFE/Cu composite materials/cold isostatic pressing/cold press sintering/dynamic compression properties分类
矿业与冶金引用本文复制引用
汤雪志,王志军,张雪朋,徐永杰..PTFE/Cu材料动态压缩特性[J].粉末冶金技术,2024,42(2):153-158,164,7.基金项目
山西省高校科技创新项目(2019L602) （2019L602）
山西省基础研究计划资助项目(2021690) （2021690）
